Sharp fast inexpensive

Once upon a time the 50 mm lens was THE standard camera lens and was THE optical benchmark by which manufacturers were judged and compared. Although the basic lens focus has now shifted (at least at the low to mid amateur level) to zooms - you can still benefit from years of research and development that went into designing the 50 mm lens and this here lens may be the best lens dollar for dollar that you can ever buy. The question is can you afford not to own this lens?



Years of development have brought us a lens that has a fast aperture of 1.8 - far faster than any consumer zoom lens - and that is sharp as a filed tack. Be forewarned about the sharpness . . . if you are taking pictures of people this lens is unyielding in its sharpness and may well surprise you and your subjects whose every blemish is captured. The lens has a fabulously shallow depth of field if you want to use the 1.8 aperture to blow out a background. This lens is also ridiculously inexpensive. It is not USM - so it is a little loud. It does not have a moving focus scale. For the money though - this is heaven.



As to the build quality - yes it is plastic. No it's not built like the Rock of Gibraltar. If you are going to give this lens extensive use as your everyday lens and you shoot a lot it may not hold up all that well as one reviewer suggests. However I've now had this lens and used it fairly regularly (although not as the primary lens) for about 8 years and it is still in great condition. In my mind spend the $$ on this first before you go and drop $330 on the 50mm 1.4 USM lens and I think you'll find it gets the job done nicely and that the extra $250 on the 1.4 may not be worth the difference in build (major difference) speed (minor difference) and image quality (minor difference).More detail ...

I Love It For IS and Zoom Range at this Price Not Pure Performance

I was determined to love this lens based on the specs and price point alone. Canon really needed to come out with this lens at this price because Nikon offers a very decent Vibration Reduction lens at roughly the same range for the same price leaving me to make apologies for Canon and their neglect to all my Nikon friends.



The IS can be switched off to save battery life but I haven't noticed a difference in battery performance with it. The IS is only activiated when you press the shutter halfway for auto focus. Although it FEELS like there is a small lag for the IS to start I don't think I've had any photos messed up because of it.



You can HEAR the IS. A little bizarre after using point and shoots that have IS that is silent but it doesn't seem to affect performance



Pro: Great price for an image stabilized zoom lens. I paid 299 and am very pleased even though Amazon is selling it for 280 a week later. ALso arrive 2 months sooner than Amazon initially promised. This lens has NEVER been 400 dollars. Its MSRP from Canon prior to release was 299.00. Shame Amazon!



Pro: Images are very sharp.



Pro: Image stabilization does a VERY nice job. Four stops as advertised by Canon? I'm not so sure. GREATLY enhancing the composition experience at 250mm? Absolutely.



Pro: Much smaller and lighter than the 70-300 of any manufacturer and much sharper than my Sigma 70-300.



Con: Cheapish feel. But just use it quit feeling it already. Plastic mount. But if you NEED a metal mount may I suggest you are being a little rough with your camera. *UPDATE* The plastic flanges on back were able to hold the camera securely to the lens but NOT hold the rear cap securely to the lens. I've tried many different rear lens caps that fit snugly on other lenses. So I think this is beyond cheap feel and has to be called CHEAP BUILD.



Con: This lens is a little (ok maybe not so little) slow to focus in dim light sometimes it misses altogether when I think other lenses of mine would have had no difficulty.



Con: I never gave Inner Focusing much thought on my other lenses until I used this. The front of this lens rotates AND moves in and out a LOT while focusing so much so that you MAY even want to recompose your shot. The length of this lens changes almost an inch across the focus range. I just checked my Sigma 70-300 and found that it does also but I've never seen it make as much difference in the viewfinder as I have with this Canon. Your perception may vary.



This lens and the soon to be arriving 18-55 IS as the XSi kit lens will allow me to carry one less lens to achieve an 18-250 IS range. For a little more money than the cost of both lenses you can get the Tamrom 18-250 but not have Image Stabilization. And now Sigma has an 18-200 WITH Optical Stablization for about what these 2 lenses cost retail but in testing the 2 Canons produced better images.



Conclusion: A great EF-S lens for Canon users. (even if Nikon had to force Canon to make it for us.)More detail ...